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8th Grade Chapter 6 Lesson 4
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8th Grade Chapter 6 Lesson 4


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For Student Use Only

For Student Use Only

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  • 1. 8 th Grade Chapter 6 Lesson 4 Pgs. 258-268 For Student Use Only
  • 2. Bird Behavior
    • Bird Singing:
      • Syrnix: organ located at base of birds trachea
        • Creates sound by
          • Causing the air to vibrate
          • Causing the walls to vibrate
    • Bird Calls:
      • Made with syrnix
      • Short characteristic calls specefic to bird species
        • Bird Calls- Encarta
  • 3. Bird Behavior
    • Visual Communication:
      • Besides vocal communication birds also communicate visually
        • Use visual displays- body language
          • Examples:
            • Head Bobbing and Tail Flicking- danger
            • Raising Crest- dominance
            • Wings spread, head up, and bill up- displeasure at rival
            • Head thrust forward, mouth open, and wings drooping- protecting territory
  • 4. Bird Behavior
    • Avian Actions:
      • Bird Baths:
        • Aquatic birds- scoop water on selves
        • Get feathers slightly wet and then shake dry
        • Some birds dust themselves to rid of parasites
        • Sun self to dry or for enjoyment
      • Anting: (not sure why this happens)
        • Ants crawl over bird and into feathers- usually when molting (ants release formic acid which may rid birds of mites, etc.)
  • 5. Bird Behavior
    • Avian Actions:
      • Bird “Baths”:
        • Birds also rub interesting things in feathers (mostly acidic substances , possibly to kill mites)
          • i.e. chokecherries, mothballs, hot chocolate, etc.
      • Mobbing and Fighting:
        • Mobbing: small birds harass a predator away
        • Diving: Mocking birds dive and attack
        • Faking injuries: (Killdeer) to distract predators
        • Rodent running: sneaking away from the nest to draw predators away
  • 6. Bird Behavior
    • Avian Actions:
      • Bird Migration:
        • Travel from one place to another for food, mating, or warmer weather
        • Some birds travel far and other travel short distances
          • Arctic tern travels from one pole to the other
        • Some birds make halting migrations (fly and stay in areas for awhile)
        • Altitudinal Migration: from higher perches to lower perches
  • 7. Bird Behavior
    • Avian Actions:
      • Bird Migration:
        • Flyways: tracks that birds follow from year to year
        • Birds have great senses of direction
        • Birds can recognize landmarks
        • Some birds use constellations to navigate
        • Some birds have built in compasses that sense Earth’s magnetic field
  • 8. Bird Behavior
    • Movie Notes: